精品一卡2卡3卡4卡新区

红与白。　　轟動武林，天地蒼茫論英雄。From now on, it is best to form the good habit of keeping rules in time.(2) The client side initiates a connection request to the server side, and the Reactor listens to the occurrence of the ACCEPT event and sends the ACCEPT event to the corresponding Acceptor processor for processing. The Acceptor processor obtains the connection (SocketChannel) corresponding to this client through the accept () method, and then registers the READ events that the connection is concerned about and the corresponding READ event handler with the Reactor, so that the Reactor will listen for the READ events of the connection. Or when you need to send data to the client, register the WRITE event for the connection and its processor with Reactor.In this way, it can be solved. Some people will ask why an additional layer of iframe is needed, because pages without iframe will be redirected, thus reducing the concealment of attacks. In addition, our test page does not use XMLHTTPRequest to send POST requests because there is a cross-domain problem, while form can post data across domains.The first scheme is to use the general coding method to realize the preloading technology of the picture. First, create the imgNode element, Then when the method myImage.setSrc is called, a preloaded picture is given to the picture first, and when the picture is loaded, the img element is assigned a value. The second scheme is implemented by using proxy mode. MyImage function is only responsible for creating img elements, proxy function ProxyImage is responsible for setting loading pictures for the picture, and when the picture is really loaded, myImage.setSrc method in myImage is called to set the path of the picture. The advantages and disadvantages between them are as follows:/scratch